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<qt> <p><b>Duplex Printing:</b> These controls may be grayed out if your printer does not support <em>duplex printing</em> (i.e. printing on both sides of the sheet). These controls are active if your printer supports duplex printing. <p> You can choose from 3 alternatives: </p> <ul> <li> <b>None.</b> This prints each page of the job on one side of the sheets only. </li> <li> <b>Long Side.</b> This prints the job on both sides of the paper sheets. It prints the job in a way so that the backside has the same orientation as the front side if you turn the paper over the long edge. (Some printer drivers name this mode <em>duplex-non-tumbled</em>). </li> <li> <b>Short Side.</b> This prints the job on both sides of the paper sheets. It prints the job so that the backside has the reverse orientation from the front side if you turn the paper over the long edge, but the same orientation, if you turn it over the short edge. (Some printer drivers name this mode <em>duplex-tumbled</em>). </li> </ul> <hr> <p><em><b>Additional hint for power users:</b> This KDEPrint GUI element matches with the CUPS commandline job option parameter:</em> <pre> -o duplex=... # examples: "tumble" or "two-sided-short-edge" </pre> </p> </qt>